The following table contains all stars with a radial velocity greater than 20 sir.
The ninth column gives the proper motion (μ), the tenth the radial velocity W expressed in sir.
The radial velocity is, numerically, greater than could have been supposed.
The upper curve shows the radial velocity of the star during the650 period of variation.
the speed an object moves toward or away from an observer, specif. that of a star or other celestial body along the line of sight of an observer